CN220479196U - Sprayer medical kit agitating unit based on venturi principle - Google Patents
Sprayer medical kit agitating unit based on venturi principle Download PDFInfo
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- CN220479196U CN220479196U CN202321042822.7U CN202321042822U CN220479196U CN 220479196 U CN220479196 U CN 220479196U CN 202321042822 U CN202321042822 U CN 202321042822U CN 220479196 U CN220479196 U CN 220479196U
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- jet
- fluid
- medical kit
- speed
- stirrer
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- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 32
- 239000003814 drug Substances 0.000 abstract description 28
- 238000003756 stirring Methods 0.000 abstract description 18
- 238000005507 spraying Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 description 8
- 239000000575 pesticide Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a spraying machine medical kit jet stirring device based on a Venturi principle, which is used for agricultural plant protection machinery, wherein the working environment is an open fluid environment in a medical kit, the spraying machine medical kit jet stirring device comprises a jet stirrer and a central support, the central support is provided with symmetrical dredging holes, deposited medicines are flushed out by jet, the central support is connected with the jet stirrer through threads, the jet stirrer is a hydraulic stirrer designed based on a Venturi effect, a stirring vortex flow field consisting of a jet region, an injection region and a diffusion region in the medical kit can be formed, high-pressure high-speed fluid is ejected through the jet region to exchange momentum with surrounding low-speed fluid, and the speed of the jet fluid is reduced to form a vortex flow field at the centroid of the medical kit after the top of the medical kit is turned. The drainage area is generated around the jet flow area, the fluid nearby under the action of pressure difference is sucked into the jet flow stirrer and is intersected with the high-speed jet flow, and the fluid and the high-speed jet flow are subjected to momentum exchange, the flow speed tends to be consistent, and the fluid is sprayed out from the diffusion area, so that the mixed liquid in the high-uniformity stirring medicine box is completed.
Description
Technical Field
The utility model relates to the field related to farmland spraying equipment, in particular to a spraying machine medicine box stirring device based on a venturi principle.
Background
As the popularity and utilization rate of large plant protection machinery increase, the requirements for the uniformity and flow rate of mixing pesticide preparations gradually increase. The poor mixing uniformity of the liquid medicine can lead to inconsistent content of the effective components of the fog drops sprayed on the targets and poor mixing uniformity, the excessive content of the effective components of the fog drops can produce phytotoxicity to plants, and the excessive content of the effective components of the fog drops can not achieve the expected pesticide application effect, so that the mixing uniformity of pesticide preparations in pesticide boxes of plant protection machinery is required to be improved in actual plant protection operation.
Disclosure of Invention
Aiming at the problems, the utility model designs a sprayer medicine box stirring device based on a Venturi principle, wherein the working environment is an open fluid environment in a medicine box, and the sprayer medicine box stirring device based on the Venturi principle comprises two jet stirrers which are connected with a central support through threads, the central support is provided with symmetrical dredging holes, and the dredging holes are arranged on two sides of the central support in a central symmetrical structure and are used for flushing deposited medicines at the bottom of the central support by using jet impact force. The jet flow stirrer is a hydraulic stirrer designed based on Venturi effect and consists of a jet flow area, an injection area and a diffusion area; the high-pressure high-speed fluid is ejected through the jet flow area, a negative pressure area is generated around the jet flow area, the fluid near the stirring nozzle is pushed into the ejection area under the action of pressure difference, vortex is formed in the drainage ring and is intersected with the high-speed jet flow, momentum exchange occurs between the vortex and the high-speed jet flow, the flow velocity of the vortex is approximately consistent, and the fluid is ejected from the diffusion area, so that the work of mixing liquid in the medicine box of the stirring sprayer is completed. The utility model can realize the liquid medicine mixing work with higher uniformity. The method is characterized in that:
the sprayer medicine box stirring device based on the venturi principle is used as an embedded modularized component of the sprayer and is arranged at the bottom of the sprayer medicine box;
further, the hydraulic stirrer designed based on the Venturi effect of the jet stirrer consists of a jet region, an injection region and a diffusion region;
further, the dredging holes are symmetrically arranged on the central support in the center;
further, a diffusion region diffusion angle of a diffusion region portion of the jet stirrer is 100 °;
further, the length ratio of the jet flow area (D), the injection area (C) and the diffusion area (B) is 2:1:3;
further, the shrinkage angle of the outlet of the injection zone of the jet stirrer is 133 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
the device structure principle reasonable in design, when using, the operator can install the medical kit bottom fast, and the operation is used conveniently. The liquid medicine is fully mixed by the spray mixer and then sprayed on the target by the spray nozzle, so that the ideal pesticide application quality for plant protection operation can be obtained, and the pesticide mixing efficiency can be better improved.
Drawings
FIG. 1 is a schematic diagram of a half-sectional view and a working principle of a stirring device of a medicine box of a spraying machine based on a Venturi principle;
FIG. 2 is a schematic diagram of the working principle of the stirring device of the sprayer medicine chest based on the Venturi principle in the medicine chest;
in the figure, 1, a jet stirrer; 2. a center support; A. dredging holes; B. a diffusion region; C. an injection zone; D. a jet zone.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Referring to fig. 1-2, a spray machine medicine tank stirring device includes:
the two jet stirrers 1 are screwed into the left and right ends of the central support 2 by screw threads.
The center support 2 is connected with a medicine box of the medicine spraying machine through an adhesive.
The appearance of the center support 2 is of a center symmetrical structure and two dredging holes A are arranged.
The dredging hole A is responsible for flushing deposited medicines accumulated in the central bracket by using jet impact force in the medicine mixing process.
The high-pressure high-speed fluid is ejected through the jet flow area D, a negative pressure area is generated around the jet flow area D, the fluid near the jet flow area D is pushed into the ejection area C under the action of pressure difference, a vortex is formed in the inner ejection area C and is intersected with the high-speed jet flow fluid, the momentum exchange is caused by the speed difference, and finally the flow velocity of the fluid and the fluid tend to be consistent and are ejected from the diffusion area B, so that the mixed liquid in the medicine box of the stirring sprayer is completed.
The working principle and the process of the utility model are as follows:
the jet stirrer 1 adopts a venturi structure design. The high-speed fluid is pumped into a sprayer medicine box stirring device based on the Venturi principle by a sprayer medicine applying pump, and then is sprayed out from a jet stirrer 1 at two sides. After the high-speed fluid is ejected from the jet mixer 1, the high-speed fluid and the low-speed fluid of the jet flow are subjected to momentum exchange due to a large amount of low-speed fluid around the high-speed fluid, and the speed is gradually reduced. When the jet fluid leaves the jet stirrer 1, the jet fluid turns to the top of the medicine box at the positions of the left side and the right side of the medicine box, which are close to the vertical wall surfaces, and forms a vortex at the centroid position of the medicine box.
The fluid enters the injection zone C after the speed of the fluid is increased by the jet zone D, the pressure near the jet zone D is reduced due to the increase of the flow speed, low-speed fluid appears around the injection zone C under the action of pressure difference, the low-speed fluid is pushed into the injection zone C and contacts with the jet fluid, momentum exchange occurs, and the fluid and the jet fluid are sprayed out of the diffusion zone B after the speed is increased together with the jet fluid through the necking section of the injection zone C.
In conclusion, the spraying machine medicine box stirring device based on the Venturi principle disclosed by the utility model utilizes the injection principle to improve the overall stirring flow by utilizing the combined action of jet flow and injection flow so as to achieve the purpose of fully stirring.
Claims (1)
1. The utility model provides a sprayer medical kit agitating unit based on venturi principle, its characterized in that a sprayer medical kit agitating unit based on venturi principle comprises jet mixer (1) and center support (2), and the device is installed in the medical kit bottom, along the long limit direction arrangement of medical kit, two desilting holes (A) of central symmetry have been arranged on center support (2), and the inside constitution of jet mixer (1) comprises jet field (D), injection field (C) and diffusion district (B), jet field (D), injection field (C) and diffusion district (B) three regional length proportion is 2:1:3, and injection district (C) its characterized in that adopts annular injection mouth structural design, diffusion district (B) its characterized in that spread angle is 100, injection district (C) its characterized in that export shrink angle is 133.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042822.7U CN220479196U (en) | 2023-05-04 | 2023-05-04 | Sprayer medical kit agitating unit based on venturi principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042822.7U CN220479196U (en) | 2023-05-04 | 2023-05-04 | Sprayer medical kit agitating unit based on venturi principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220479196U true CN220479196U (en) | 2024-02-13 |
Family
ID=89833585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321042822.7U Active CN220479196U (en) | 2023-05-04 | 2023-05-04 | Sprayer medical kit agitating unit based on venturi principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220479196U (en) |
-
2023
- 2023-05-04 CN CN202321042822.7U patent/CN220479196U/en active Active
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